[Bug 2055402] Re: Though lintian call: error: troff: Segmentation fault

[Alexandre Esse]

** Description changed:

  Hello,
  
  I was trying to run lintian on some deb packages an run onto some errors
  messages from groff.
  
  Steps to reproduce:
  
  1. Setup a LXD container with mantic or Noble:
  
  lxc launch ubuntu-daily:noble #or lxc launch ubuntu:mantic
  
  2. Install lintian
  
  apt install lintian
  
  3. Run lintian on some package:
  
  apt download tree && lintian tree_*.deb
  
  4. Enjoy the groff-message logs:
  
  W: tree: groff-message command exited with status 2: /usr/libexec/man-db/zsoelim | /usr/libexec/man-db/manconv -f UTF-8:ISO-8859-1 -t UTF-8//IGNORE | preconv -e UTF-8 | groff -mandoc -Z -rLL=117n -rLT=117n -wmac -Tutf8 [usr/share/man/man1/tree.1.gz:2]
  W: tree: groff-message error: troff: Segmentation fault (core dumped) [usr/share/man/man1/tree.1.gz:1]
  
- 
  * Container infos:
  
  lsb_release -rd
  
  No LSB modules are available.
  Description:    Ubuntu Noble Numbat (development branch)
  Release:        24.04
  
  * Packages infos:
  
  apt-cache policy groff
  groff:
-   Installed: (none)
-   Candidate: 1.23.0-3
-   Version table:
-      1.23.0-3 500
-         500 http://archive.ubuntu.com/ubuntu noble/universe amd64 Packages
+   Installed: (none)
+   Candidate: 1.23.0-3
+   Version table:
+      1.23.0-3 500
+         500 http://archive.ubuntu.com/ubuntu noble/universe amd64 Packages
  
  apt-cache policy lintian
  lintian:
-   Installed: 2.117.0ubuntu1
-   Candidate: 2.117.0ubuntu1
-   Version table:
-  *** 2.117.0ubuntu1 500
-         500 http://archive.ubuntu.com/ubuntu noble/main amd64 Packages
-         100 /var/lib/dpkg/status
+   Installed: 2.117.0ubuntu1
+   Candidate: 2.117.0ubuntu1
+   Version table:
+  *** 2.117.0ubuntu1 500
+         500 http://archive.ubuntu.com/ubuntu noble/main amd64 Packages
+         100 /var/lib/dpkg/status
  
  * Expected output (on Jammy): No segfault and no problem on the tested
  package with lintian (tree_2.1.1-2_amd64.deb)
- 
- I set it to security vulnerable because it involves a segfault.

** Information type changed from Private Security to Public

** Also affects: groff (Ubuntu)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/2055402

Title:
  Though lintian call: error: troff: Segmentation fault

Status in groff package in Ubuntu:
  Confirmed

Bug description:
  Hello,

  I was trying to run lintian on some deb packages an run onto some
  errors messages from groff.

  Steps to reproduce:

  1. Setup a LXD container with mantic or Noble:

  lxc launch ubuntu-daily:noble #or lxc launch ubuntu:mantic

  2. After getting connected to the container: Install lintian on it

  apt install lintian

  3. Run lintian on some package inside the container:

  apt download tree && lintian tree_*.deb

  4. Enjoy the groff-message logs:

  W: tree: groff-message command exited with status 2: /usr/libexec/man-db/zsoelim | /usr/libexec/man-db/manconv -f UTF-8:ISO-8859-1 -t UTF-8//IGNORE | preconv -e UTF-8 | groff -mandoc -Z -rLL=117n -rLT=117n -wmac -Tutf8 [usr/share/man/man1/tree.1.gz:2]
  W: tree: groff-message error: troff: Segmentation fault (core dumped) [usr/share/man/man1/tree.1.gz:1]

  * Container infos:

  lsb_release -rd

  No LSB modules are available.
  Description:    Ubuntu Noble Numbat (development branch)
  Release:        24.04

  * Packages infos:

  apt-cache policy groff
  groff:
    Installed: (none)
    Candidate: 1.23.0-3
    Version table:
       1.23.0-3 500
          500 http://archive.ubuntu.com/ubuntu noble/universe amd64 Packages

  apt-cache policy lintian
  lintian:
    Installed: 2.117.0ubuntu1
    Candidate: 2.117.0ubuntu1
    Version table:
   *** 2.117.0ubuntu1 500
          500 http://archive.ubuntu.com/ubuntu noble/main amd64 Packages
          100 /var/lib/dpkg/status

  * Expected output (on Jammy): No segfault and no problem on the tested
  package with lintian (tree_2.1.1-2_amd64.deb)

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